Hi all! I haven't yet got an EK9 type r but am hoping for one very soon. I just wanted to know, do the open filters on jap cars not suffer from heat soak? Thing is, at the moment I am currently driving a saxo vtr and one of the worst things you can do is put on an open filter as it just sucks in the hot air from the engine. However, most jap cars I see have open filters such as an HKS mushroom filter, and I just want to know, dont jap cars see a reduction in power from putting on open filters?